Jar-closure.



No. 779,108.- PATENTED JAN. 3, 1905.

A. L. WEISSENTHANNER.

JAR CLOSURE. APPLIUA TION TILED rm. 15. 1904.

Patented January 3, 1905.

PATENT OFFICE.

ALFRED L. WEISSENTHANNER, OF NEW YORK, N. Y.

JAR-CLOSURE.

SPECIFICATION forming part of Letters Patent No. 779,108, dated January3, 1905.

Application filed February 15, 1904. Serial No.193,b89.

T0 at whmn it ntcty concern:

'Be it known that I, ALFRED L. W EissEN- THANNER, a citizen of theRepublic of France,

and a resident of the city, county, and State of New York, have inventedcertain new and engagement between the jar and the stopper.

The character of receptacle to which my invention relates commonly has alarge mouth with an internal recess and requiring aheavy external rim orrib having considerable vertical depth. In order that the locking partsof the stopper may have sufficient strength to form an effective seal,the flange must be extended downwardly to a point near thelocking-shoulder formed by the lower edge of the rib and the flange ofthe stopper must have great vertical depth. The amount of metal requiredto produce such stoppers increases in an increasing ratio with relationto the depth of the flange.

My invention has for an object to provide a construction whereby thestopper may be formed of less metal without impairing the efficiency ofthe seal produced thereby, also to provide a construction which is neatand attractive in appearance and convenient and eflicient in use. Theseand other objects of my invention will more fully appear from thefollowing description.

My invention consists in the novel parts, improvements, and combinationsshown and described herein.

The accompanying drawings, which are referred to herein and form a parthereof, illustrate one embodiment of my invention and serve inconnection with the description herein to explain the principlesthereof.

Of the drawings, Figure 1 is a side elevation of a stopper constructedin accordance with my invention. Fig. 2 is a plan view of the blank fromwhich the stopper of Fig. 1 is formed. Fig. 3 is a side elevation,partly in section, of the stopper applied to a receptacle constructed inaccordance with my invention; and Fig. 4 is a similar view representinga modification of the form of stopper illustrated in Figs. 1, 2, and 3.

In accordance with my invention the receptacle is provided at its mouthwith an external rim or rib having an annular recess or groove at apoint intermediate of its vertical extent, and the stopper is providedwith an integral depending flange terminated at or near the upper edgeof said groove, said flange having a plurality of depending tongues orprojections adapted to be bent into locking relation with the groove. Byreason of this construction the flange of the stopper can be made veryshallow, and yet the locking projections thereof may be bent intolocking contact with the receptacle at a point close to their base, sothat they are held in effective locking contact by the full radialstiffness of the flange.

Referring to the drawings, 1 represents a receptacle having a largemouth provided with an external locking rim or rib 2. As is usual withthis character of receptacle, it is provided at its mouth with aninterior annular recess 3, this feature taken in connection with thelarge size of the mouth requiring a rib 2, having considerable depth. 3is provided to reduce the area of contact between the rim of the jar andthe packing in the stopper, so that an efiective sealing pressure may besecured with a minimum of force. If the full width of the rim of thejar, which on account of its large size must be relatively thick, wasbrought into contact withthe packing, too great aforce would have to beexerted and maintained upon the cover to secure the proper sealingpressure between the rim and the packing. As shown, the rib 2 isprovided on its external surface with an annular recess or groove 4,said groove being in accordance with the best construction located asclose to the upper edge of the rib 2 and as near the plane of the lowersurface of the recess 3 as is consistent with a suiflcient degree ofstrength of the parts. As shown, the groove 4 is located about midway ofthe vertical extent of the rib.

The recess The stopper comprises a top or crown portion 5, having anintegral depending flange 6, provided with a plurality of lockingextensions or tongues 7. The flange 6 is substantially vertical andclosely fitted to the vertical wall of the rim of the receptacle and is-made of such length that when the stopper is pressed down upon the topof the receptacle with a suitable packing-disk 8 interposed between itand the receptacle the lower edge of said flange will be located at ornear the upper edge of the groove. While the stopper is in thisposition, the tongues 7 are forced into the groove 4 to secure thestopper in its sealing relation on the receptacle. By reason of the factthat the tongues 7 are bent close to the lower edge of the flange a moreeffective locking engagement between the stopper and the receptacle issecured than could be obtained by a greater number of tongues orprojections which were bent into locking relation with the receptacle ata greater distance from the flange. While the stopper may be constructedwith anydesired number of locking projections 7, it is provided in itsbest form with four of these projections, as four projeotions can beformed from metal which might otherwise be wasted in producing theblanks.

A blank for producing a stopper with four locking projections isillustrated in Fig. 2. It will be seen that this blank may be producedfrom the metal within a square (indicated by dotted lines) each side ofwhich has a length equal to the diameter of the stopper plus twice thedepth ofthe flange, the locking projections being formed from the metalat the corners on the square. If preferred, the locking extensions maybe made longer than they are shown in Figs. 1, 2, and 3 to provide aprojecting end 9, as shown in Fig. 4, adapted to be engaged by thefingers or a suitable implement to release the stopper from thereceptacle. The substantially vertical or cylindrical form of the flangeof the stopper closely fitted to the outer vertical wall of the rim ofthe receptacle makes the stopper effective as a temporary cover orclosure after the package has been once opened.

While in accordance with the best construction the stopper is providedwith four locking projections, some of the advantages of my inventionmay be realized in a construction having a greater or less number ofprojections. My invention in its broader aspects, therefore, is notlimited to the precise construction shown, as many changes may be madetherein without departing from the main principles of the invention andWithout sacrificing its chief advantages.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. 'In combination with a receptacle having an external-rib the'outervertical Wall of which is provided at a point intermediate of itsvertical extent with an annular groove, a sheetmetal stopper having anintegral depending vertical flange closely fitted to the vertical Wallof said rim and terminated near the upper edge of said groove, and aplurality of depending tongues adapted to be bent into locking relationwith said groove.

2. In combination with a receptacle having an external rib the outervertical wall of which is provided at a point intermediate of itsvertical extent with an annular groove, a sheetmetal stopper having anintegral depending flange terminated near the upper edge of said groove,said vertical flange closely fitted to the vertical wall of said rim andbeing provided with four equally-spaced depending tonguesadapted to bebent into locking relation with said groove.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ALFRED L. WEISSENTHANNER.

Witnesses:

EDWIN SEGER, J. H. FREEMAN.

